Rose Care

May

Fertilize roses with a liquid 20-20-20 solution when flower buds are set.

Monitor roses for insects and diseases. Check daily for black spot, especially in wet weather. Do not handle rosebushes if foliage is wet and infected. Wait until leaves have dried before removing them and spraying.

Monitor roses for rose slugs (small white caterpillars with black heads) and their damage (tissuelike patches on the leaves).